野生青檀种子的形态特征及其发芽率  

The Morphological Characteristics and Germination Rate of Wild Pteroceltis tatarinowii Seeds

作　　者：汪殿蓓[1] 李建华[1] 艾娜[1] 王伟[1] 刘仁阳[1] 

机构地区：[1]孝感学院生命科学技术学院,湖北孝感432000

出　　处：《种子》2011年第1期35-38,共4页Seed

基　　金：湖北省教育厅科学技术研究重大项目(Z20092601)

摘　　要：对湖北省大贵寺国家森林公园的野生青檀种群种子形态特征、发芽率进行观测,以期为野生种群的就地抚育提供科学指导。结果表明,青檀果实平均宽度为15.76 mm,果实平均翅宽为6.14 mm和5.52 mm,种子平均厚度为2.88 mm,种子平均长度为4.42 mm,种子平均宽度为4.11 mm,各生长指标的变异系数为5.66%-10.65%。种子的百粒重为1.91 g,变异系数为15.65%。1周内青檀种子的发芽势为65.42%,1月内青檀种子的发芽率为76.66%。按种子厚度将种子分为3级,3级种子间百粒重差异显著,而发芽势、发芽率差异不显著,说明发芽势、发芽率与种子重量之间无相关关系。The seed morphological characteristics and its germination rate of wild Pteroceltis tatarinowii,which distributed in Daguisi national forest park of Hubei province,were studied in order to provide the scientific guidance for wild population＇s tending on site.The results showed that the average width of the fruits was 15.76 mm,the average widths of fruit＇s wings were 6.14 mm and 5.52 mm,the average thickness of seeds was 2.88 mm,the average length and width of seeds were 4.42 mm and 4.11 mm,respectively.The coefficients of variation among the indices were from 5.66% to 10.65%.The weightiness of a hundred seeds was 1.91 g and its coefficient variation was 15.65%.The germinability of Pteroceltis tatarinowii seeds at a week was 65.42%,and the germination rate at a month was 76.66%.The seeds were divided into three classes by seed thickness.The statistical analysis showed that there was significant difference in the weightiness of a hundred seeds,but there were no significant differences in the germinability and germination rate at three classes of seed.It indicated that there was no relationship between the weightiness and germinability,germination rate.

关 键 词：野生青檀 野生 果实 种子 发芽率 

分 类 号：Q945.35[生物学—植物学]